| Erzurum to Orbetello | 1,565.07 mi (2,518.73 km) |
| Erzurum to Oria | 1,244.60 mi (2,002.99 km) |
| Erzurum to Oristano | 1,722.50 mi (2,772.09 km) |
| Erzurum to Orta Nova | 1,339.52 mi (2,155.75 km) |
| Erzurum to Orte | 1,505.26 mi (2,422.48 km) |
| Erzurum to Ortona | 1,402.97 mi (2,257.86 km) |
| Erzurum to Orvieto | 1,518.39 mi (2,443.61 km) |
| Erzurum to Orzinuovi | 1,626.18 mi (2,617.09 km) |
| Erzurum to Osimo | 1,448.03 mi (2,330.38 km) |
| Erzurum to Ospitaletto | 1,619.88 mi (2,606.94 km) |
| Erzurum to Ostuni | 1,245.67 mi (2,004.71 km) |
| Erzurum to Ottaviano | 1,406.54 mi (2,263.60 km) |
| Erzurum to Ovada | 1,688.15 mi (2,716.81 km) |
| Erzurum to Ozieri | 1,693.07 mi (2,724.73 km) |
| Erzurum to Paceco | 1,542.74 mi (2,482.79 km) |
